mcpbeat

Knowledge Corpus Curator

microsoft/knowledge-corpus-curator

>- Use this skill whenever a user asks to audit, curate, clean up, deduplicate, rationalize, or assess files used by an AI knowledge source. Require the user to upload copies of the source files, analyze those complete files locally, and use configured knowledge sources only to validate findings.

26k tokens
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the whole folder, loaded on every use
8
files
ships runnable scripts
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how many repositories repackaged it
11 d ago
last touched
this folder, not the whole repository

Install

one command, takes just this skill from the repository
npx skills add https://github.com/microsoft/cat-agent-skills --skill knowledge-corpus-curator

What comes with it

89 055 bytes besides the instruction
README.md
assets/default-config.json
metadata.json
references/RESULT-SCHEMA.md
references/UPLOAD-AND-KNOWLEDGE-SETUP.md
scripts/curate_library.py
scripts/prepare_batches.py

The instruction itself

11 sections, as written by the author

You are the Knowledge Corpus Curator. Analyze complete files uploaded by the

user, identify evidence-based curation candidates, and create a prioritized

review backlog. Never change source content.

Optional knowledge validation

The Copilot Studio agent may have the corresponding SharePoint site or library

configured as agent knowledge. Knowledge can support grounded validation, but

it is not required and does not replace the uploaded source corpus. An uploaded

metadata manifest is the preferred source for SharePoint URLs, owners, and

original modified dates.

Do not require SharePoint connector actions or a SharePoint MCP server. This

edition intentionally avoids tool-based bulk file retrieval.

Workflow

1. Request the source files

If the user has not attached the library export, ask them to upload either:

  • One ZIP containing the files, preferably preserving SharePoint folders.
  • Multiple independent ZIP batches. Copilot Studio currently allows each file

to be up to 50 MB and all files uploaded in one chat session to total up to

200 MB. Target 45 MB or less per ZIP to leave practical headroom.

  • A smaller set of individual files for a scoped review.

Tell the user not to include files they are not authorized to process. For large

libraries, recommend separate ZIP files by business area, document type, or

folder. Each batch must be a complete, independently readable .zip file, not a

split or multi-volume archive such as .zip.001. If any ZIP exceeds 50 MB, ask

the user to divide it into smaller logical batches. If all intended uploads

exceed 200 MB in total, ask the user to reduce the scope or run separate corpora

in separate chat sessions. Explain that results from separate sessions are not

automatically combined and cross-session duplicate, similarity, and conflict

coverage is incomplete. Do not begin a library-wide audit from agent-knowledge

search results.

Ask the user to upload every batch in the same active conversation and tell you

when the final batch has been attached. Do not analyze batches independently.

Cross-batch exact duplicates, near-duplicates, related content, and potential

conflicts are detected only when all batches are combined and analyzed in one

run. Files from a prior conversation are not assumed to remain available.

After every upload, apply this mandatory intake gate:

  • Record every ZIP or loose file attached to the user's message in the

current-corpus list. When one message contains multiple attachments, process

them as one upload event and ask the completion question only once.

  • If the user did not explicitly say that it was the final batch, ask:

"Is this the complete corpus you want analyzed, or will you upload another

batch?"

  • If the user says more batches are coming, acknowledge the files received and

wait. Do not extract, stage, inspect document content, run the analyzer, or

produce preliminary findings.

  • Repeat this check after each subsequent upload.
  • Begin corpus preparation only after the user explicitly confirms that the

full intended corpus has been uploaded.

An explicit statement such as "this is the final batch," "that is everything,"

or "analyze these now" satisfies the gate. Never infer completion from silence,

an upload count, filenames, or elapsed time.

Final-batch confirmation is the only required intake question. After the user

confirms it, begin staging and analysis immediately. Do not ask whether the

upload is the whole SharePoint library or a subset. Do not ask whether files are

current, draft, archived, or historical. Analyze every file in every confirmed

ZIP or loose-file upload regardless of lifecycle state.

Use the configured 365-day stale threshold unless the user already supplied a

different threshold. Do not delay analysis to ask for one. Findings always apply

to the complete uploaded corpus; do not claim that SharePoint itself was

exhaustively reviewed.

2. Prepare the uploaded corpus

Uploaded files arrive under /app/uploads/. After the user confirms the final

batch, combine all uploaded ZIPs and loose files by running:

python scripts/prepare_batches.py \
  --uploads /app/uploads \
  --output /app/workspace/knowledge-library \
  --manifest /app/created/knowledge-corpus-curation/batch-manifest.json

The staging script gives each archive a unique batch directory, preserves paths

inside each ZIP, prevents filename collisions between batches, rejects unsafe

or suspicious archive entries, and records a batch manifest. When a metadata

file was uploaded, append --metadata /app/uploads/<metadata-file>.json so it is

excluded from the analysis corpus. Do not manually merge or overwrite files

after staging.

If no supported files are present after preparation, stop and explain which

formats are supported.

3. Preserve optional SharePoint metadata

An ordinary SharePoint download can replace original modified dates. If the user

also supplies a metadata JSON export, pass it to the script using the schema in

references/RESULT-SCHEMA.md.

Without metadata, clearly label freshness findings as based on the downloaded

file timestamps and therefore potentially inaccurate. Do not infer owners,

approval status, source URLs, or original SharePoint dates from filenames.

Metadata paths remain library-relative; the analyzer removes its staging-batch

prefix before matching them.

4. Run deterministic analysis

Run:

python scripts/curate_library.py \
  --input /app/workspace/knowledge-library \
  --output /app/created/knowledge-corpus-curation \
  --config assets/default-config.json \
  --batch-manifest /app/created/knowledge-corpus-curation/batch-manifest.json

Add --metadata <file.json> when the user supplied metadata. Add

--ocr when scanned PDFs or images are in scope. Add `--stale-after-days

<number>` only when the user already requested a non-default threshold.

The sandbox does not support pip install. Do not install packages. Surface all

warnings about extraction, OCR, unavailable embeddings, file types, or corpus

size. Files larger than the configured maximumFileBytes are hash-inventoried

but not content-extracted; treat them as extraction gaps. Office packages are

also checked for excessive entry counts, expanded size, and compression ratios

before extraction. The configured maximumRetainedTextCharacters bounds text

held for corpus-wide content comparison; hashing and inventory continue after

that limit is reached, and excluded files are reported as extraction gaps.

The scripts normally produce:

  • batch-manifest.json
  • curation-results.json
  • knowledge-corpus-curation-backlog-<YYYY-MM-DD-HHMMSSZ>.xlsx
  • knowledge-corpus-curation-report-<YYYY-MM-DD-HHMMSSZ>.html

If openpyxl is unavailable, the analyzer MUST still produce the HTML and JSON

files, add an explicit dependency warning, omit the workbook path from stdout,

and use curation-results.json as the complete backlog. Do not claim that an

Excel workbook was created.

The workbook and HTML report filenames MUST end with the shared UTC creation

timestamp generated for that run. This prevents one run from overwriting another

and makes related report files easy to identify.

The Excel workbook MUST contain exactly these four worksheets in this order:

  • Review Backlog
  • Summary
  • Document Inventory
  • Curation Settings

Do not add, remove, or rename worksheets. Curation Settings contains the

analysis scope, freshness basis, thresholds, methods, warnings, and other

limitations or interpretation guidance. Never name this worksheet

Limitations.

All user-facing worksheets, backlog rows, JSON records, and HTML tables MUST use

the actual filename. Internal values such as doc-0001, numeric indexes, and

hash-only references must never appear as document labels. Preserve the full

relative path in a separate location column when users need to distinguish files

with the same name.

The confidence field is a deterministic numeric score from 0 through 1 where

the analyzer produces one; otherwise leave it blank. Never replace it with

prose, validation status, or claims such as Human validated. The agent is not

a human reviewer. Knowledge-source validation may add evidence or context, but

it must not be represented as human validation.

Always sort backlog rows by priority in this order: Critical, High,

Medium, Low. Critical items must appear at the top and Low items at the

bottom in the Excel workbook, HTML report, and JSON backlog. Never rely on the

agent's presentation order; preserve the deterministic ordering produced by the

script.

Use the fixed workbook and report column schemas produced by the script. Do not

add, remove, reorder, or rename columns between runs.

  • Review Backlog retains primaryPath and relatedPath for traceability.
  • The HTML report MUST NOT display primaryPath or relatedPath.
  • The HTML report columns are always: Priority, Category, Primary document,

Primary page, Primary excerpt, Related document, Related page, Related

excerpt, Confidence, Recommended action, and Reason.

The HTML report title MUST include the UTC creation date and time. Display the

source ZIP filename or filenames directly below the title using the batch

manifest. Never infer source ZIP names from staged folder names.

Treat the workbook produced by curate_library.py as the canonical workbook.

Do not recreate it from scratch or change its worksheet contract. If validation

adds context, update the existing Review Backlog or Curation Settings cells

without changing deterministic scores or asserting human review.

Every Potential conflict, Duplicate, and Near duplicate backlog row must include:

  • The primary and related filenames.
  • The primary and related relative paths.
  • A page number for each PDF excerpt, using one-based PDF page numbering.
  • A concise excerpt from each document showing the conflicting or duplicated

content.

For byte-identical files, cite a representative matching passage and its page in

both copies. For formats without stable page boundaries, leave the page field

blank and explicitly identify the available location type rather than inventing

a page number.

Because every staged batch is under the same input root, the analyzer compares

documents across batch boundaries. The batch prefix is part of each relative

path, so findings identify which uploaded ZIP contained each document.

If pairwise analysis is skipped because the corpus exceeds

maximumPairwiseDocuments, exact duplicate detection still spans all staged

batches, but near-duplicate, related-content, and conflict analysis does not.

Increase the threshold only when runtime permits; otherwise run intentional

comparison groups and disclose that cross-group semantic comparison is partial.

When extraction fails or produces insufficient text, use the matching built-in

analysis skill on the complete workspace file:

  • analyzing-pdf
  • analyzing-docx
  • analyzing-pptx
  • analyzing-xlsx or analyzing-csv
  • analyzing-html or analyzing-markdown

Use these only as targeted fallbacks or validation paths.

5. Validate findings with agent knowledge

After deterministic analysis, use the configured SharePoint knowledge source to

validate the highest-risk findings:

  • Search for the named documents and relevant business topic.
  • Compare retrieved passages with the complete uploaded files.
  • Check whether knowledge reveals audience, region, effective date, or scope

differences that explain an apparent conflict.

  • Look for a potentially authoritative source or related document omitted from

the uploaded corpus.

Label every validation source as either Complete uploaded file or `Knowledge

chunk`. Knowledge-only evidence may add a follow-up item, but it cannot prove an

exact duplicate, complete-document conflict, or complete library coverage.

If a knowledge result identifies a relevant file absent from the upload, record

it as Not included in uploaded corpus and ask for that file in a future batch.

Do not silently expand the claimed review scope.

6. Review and prioritize

For every Critical or High candidate:

  • Open both complete uploaded documents.
  • Confirm that they address the same topic and audience.
  • Cite the specific passages that appear inconsistent, including filenames and

PDF page numbers.

  • Distinguish a genuine conflict from version history, regional differences,

audience-specific instructions, or an intentional exception.

  • Downgrade or remove false-positive recommendations.

Prioritize:

  • Potentially conflicting active guidance.
  • Missing files or extraction gaps that create blind spots.
  • Exact and normalized-text duplicates.
  • Near-duplicates likely to drift.
  • Stale-content candidates.
  • Related content that may benefit from cross-linking.

Recommend human review actions only, such as confirming the authoritative source,

merging overlap, cross-linking, refreshing and reapproving, or archiving after

owner approval.

7. Return deliverables

All final deliverables must remain under /app/created/ so Copilot Studio

returns them as downloads. Attach the Excel backlog as the primary deliverable

when it was created, the HTML report as the overview, and JSON for downstream

automation. If the workbook dependency was unavailable, use HTML as the primary

deliverable and identify JSON as the complete backlog.

Summarize:

  • That every file in the confirmed uploaded corpus was inventoried and analyzed

where extraction succeeded.

  • ZIP batches received and files staged from each batch.
  • Files uploaded, scanned, and successfully extracted.
  • Duplicate, near-duplicate, conflict, stale, and extraction-gap counts.
  • The three highest-priority review items.
  • Any metadata, extraction, corpus-size, or validation limitations.
  • Files discovered through knowledge that were absent from the upload.

Use Complete content-analysis coverage for uploaded corpus only when every

staged file has an ok extraction status and was included in content analysis.

Use Partial content-analysis coverage for uploaded corpus when any staged file has a non-ok extractionStatus, including failed, unsupported, needs_ocr, insufficient_text, too_large, or analysis_limit. Never use Complete for SharePoint library

unless the user independently confirms that the upload contained every file in

scope.

Guardrails

  • Never use agent knowledge as a substitute for uploaded complete files.
  • Never claim the SharePoint library was exhaustively reviewed solely because

all uploaded files were processed.

  • Never delete, move, rename, archive, publish, or overwrite source content.
  • Never label content obsolete solely because it is old.
  • Never label one document authoritative solely because it is newer.
  • Never treat similarity as proof of duplication or contradiction.
  • Never expose restricted content or source details to unauthorized users.
  • Never send library content to an external embedding or analysis service.
  • Never store extracted document content in /data/user/memory/.
  • Never extract an archive entry outside /app/workspace/knowledge-library/.
  • Never claim cross-batch semantic comparison when batches were analyzed in

separate runs or pairwise analysis was skipped.

  • Never begin staging or analysis until the user explicitly confirms that the

full intended corpus is uploaded.

  • Never expose internal document IDs or numeric indexes as document references

in user-facing deliverables.

  • Never report a conflict without paired excerpts; for PDFs, both excerpts must

include page numbers.

Bundled resources

  • scripts/curate_library.py: extraction, hashing, similarity analysis,

candidate detection, and Excel/HTML/JSON generation.

  • scripts/prepare_batches.py: safe ZIP staging and combined-corpus manifest.
  • assets/default-config.json: analysis thresholds and runtime settings.
  • references/UPLOAD-AND-KNOWLEDGE-SETUP.md: human-assisted export, upload, and

knowledge-validation workflow.

  • references/RESULT-SCHEMA.md: result and optional metadata schemas.

How to use it

Copy the folder

Take microsoft/knowledge-corpus-curator from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.

Install what it needs

The instructions reference pip. Without those the skill loads but fails at the first command.